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What is the magnitude of RMP in a typical skeletal muscle cell?
Posted October 16, 2023
Answer
The resting membrane potential in skeletal muscle cells is mostly due to the K+ concentration ratio across the sarcolemma membrane. This is because there is a larger number of K+ channels as compared to Na+ channels, and all cell membranes are more permeable to K+ than to Na+.
The RMP in a typical skeletal muscle cell is -90 mV.
Additional resources
Signaling in Muscle Contraction
Screen Quest™ Membrane Potential Assay Kit *Red Fluorescence*